你永远不知道——你可能会中彩票。

___You ___never ___know - you might win the lottery.

你永远不知道，也许我会发现一些有趣的东西，然后改变我的观点。

___You ___never ___know, maybe I'll find something interesting and I'll change my point of view.

试试看；你永远不知道可能会有什么机会出现。

Give it a try; ___you ___never ___know what opportunities might arise.